[openib-general] multicast code/merge status

[Michael S. Tsirkin]

> Quoting Or Gerlitz <ogerlitz at voltaire.com>:
> Subject: Re: multicast code/merge status
> 
> Sean Hefty wrote:
> >> Other then that, as we discussed in SC06 there are some changes that 
> >> need to be integrated in the code to allow for interoperability 
> >> between a multicast rdma cm based app to IPoIB, specifically removing 
> >> the RDMA CM signature from the mgid which generated from the ip addr 
> >> and pkey, but not only.
> 
> > ...I have not completed these changes yet.  Specifically, I have not 
> > added a send only join parameter or changed the qkey.
> 
> OK, I understand that adding a send only join param changes the 
> librdmacm/ucma ABI and further that you might be somehow busy to fully 
> implement the sendonly scheme at the multicast code for the 2.6.21 time 
> frame.
> 
> How about adding sendonly param to the ABI and having the ucma kernel 
> code returning -EINVAL if someone tries to set it to true. Such code can 
> be pushed to 2.6.21 and when you have the time to complete the 
> implementation you can complete this?

Since Voltaire requested this code to be in OFED 1.2, could you please clarify
whether the code in Sean's branch is in the shape you want it to be in for OFED 1.2?
If rdma_cm multicast can't interoperate with IPoIB, is it still useful for you?

-- 
MST